Wildenstein, Daniel - French art dealer whose family still owns more Old Masters than you can shake a stick at.
Owner of (in alphabetical order) All Along, Allez France, Arcangues, Peintre Celebre and Sagace, plus a shed load of other top class horses.
A very bad loser who had various disagreements with, and dispensed with the services of (also in alphabetical order) Patrick-Louis Biancone, Henry Cecil, André Fabre, John Hammond, Elie Lellouche, Angel Penna and Peter Walwyn.